The present invention describes a system and method for communicating voice and data over a packet-switched network that is adapted to coexist and communicate with a legacy PSTN. The system permits packet switching of voice calls and data calls through a data network from and to any of a LEC, a customer facility or a direct IP connection on the data network. The system includes soft switch sites, gateway sites, a data network, a provisioning component, a network event component and a network management component. The system interfaces with customer facilities (e.g., a PBX), carrier facilities (e.g., a LEC) and legacy signaling networks (e.g., SS7) to handle calls between any combination of on-network and off-network callers. The soft switch sites provide the core call processing for the voice network architecture. The soft switch sites manage the gateway sites in a preferred embodiment, using a protocol such as the Internet Protocol Device Control (IPDC) protocol to request the set-up and tear-down of calls. The gateway sites originate and terminate calls between calling parties and called parties through the data network. The gateway sites include network access devices to provide access to network resources. The data network connects one or more of the soft switch sites to one or more of the gateway sites. The provisioning and network event component collects call events recorded at the soft switch sites. The network management component includes a network operations center (NOC) for centralized network management.

Voice over data telecommunications network architecture

The present invention provides a firewall that achieves maximum network security and maximum user convenience. The firewall employs “envoys” that exhibit the security robustness of prior-art proxies and the transparency and ease-of-use of prior-art packet filters, combining the best of both worlds. No traffic can pass through the firewall unless the firewall has established an envoy for that traffic. Both connection-oriented (e.g., TCP) and connectionless (e.g., UDP-based) services may be handled using envoys. Establishment of an envoy may be subjected to a myriad of tests to “qualify” the user, the requested communication, or both. Therefore, a high level of security may be achieved. The usual added burden of prior-art proxy systems is avoided in such a way as to achieve fall transparency-the user can use standard applications and need not even know of the existence of the firewall. To achieve full transparency, the firewall is configured as two or more sets of virtual hosts. The firewall is, therefore, “multi-homed,” each home being independently configurable. One set of hosts responds to addresses on a first network interface of the firewall. Another set of hosts responds to addresses on a second network interface of the firewall. In one aspect, programmable transparency is achieved by establishing DNS mappings between remote hosts to be accessed through one of the network interfaces and respective virtual hosts on that interface. In another aspect, automatic transparency may be achieved using code for dynamically mapping remote hosts to virtual hosts in accordance with a technique referred to herein as dynamic DNS, or DDNS.

Firewall providing enhanced network security and user transparency

Method implemented by a computer-based electronic assistant (60) include receiving and managing incoming calls to a subscriber. Methods include receiving an incoming call to the subscriber, establishing a connection between assistant (60) and subscriber, linking the caller and subscriber in response to receiving a call accept command, and switching the assistant (60) to a background mode. The assistant (60) monitors the subscriber for a summoning command while in the background mode and in response to receiving a summoning command, switches the assistant into a foreground mode which enables the subscriber to initiate conferencing features. Other methods include providing an electronic reminder service to the subscriber via use of personal locator and multimedia communication type determination, identification of a third party caller to subscriber while in an established connection, and providing multiple media type interaction capabilities.

A network based knowledgeable assistant

A remote controlled robot with a head that supports a monitor and is coupled to a mobile platform. The mobile robot also includes an auxiliary camera coupled to the mobile platform by a boom. The mobile robot is controlled by a remote control station. By way of example, the robot can be remotely moved about an operating room. The auxiliary camera extends from the boom so that it provides a relatively close view of a patient or other item in the room. An assistant in the operating room may move the boom and the camera. The boom may be connected to a robot head that can be remotely moved by the remote control station.

Telepresence robot with a camera boom

A method and apparatus for managing institutional telephone activity utilizes a computer control unit to control a trunk management unit, which connects institutional telephones to outside telephone lines. The computer control unit contains a database for storing the calling privileges and restrictions of institutional users and for recording calling transactions made by the users. The computer control unit implements a prospective call screening feature whereby outside recipients of undesired calls from the institution may enter a code that directs the computer control unit to prohibit similar calls in the future.

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

A digital switching network for providing simultaneous connections among user processors of processor-based communications equipment. The user processors act as originators and destinations of data communications packets. Packet data connections are through node controllers, which communicate with gateways, which are connected to a switching network via packet links. Control messages are communicated between node controllers, gateways, and an interchange control subsystem via various control message links. All control message processing and packet data transmissions are synchronized with a packet frame synchronization signal, and processing tasks performed by each of the network subsystems are pipelined so that they occur simultaneously. Service requests are queued in a central queue in the interchange control system. The synchronization and queueing simplify the control messages that are required to set up and release the connections.

Interprocessor switching network

A method and system providing wireless personal telepresence facilitating collaboration by two or more persons, each in different locations, on a task at one of the locations and requiring visualization by multiple persons. A portable wireless unit captures/transmits video depicting the technician's first-hand field of view while keeping her hands free to perform the task. The expert employs a management console for visualization of the task being performed by the technician while communicating in real time with the technician. The management console also provides control over video and audio functions including record, playback, freeze frame and image attributes. Communication between the two persons is accomplished by exchanging digitally compressed video and audio via a voice or data network, either public or private. A community server augments the system by supporting three or more participants and enabling communication across public networks.

Wireless telepresence collaboration system

A proactive call services system serving as a new node or switching network within a closed subsystem is disclosed. Remote monitors provide information necessary to allow the provision of enhanced services to the closed subsystem, which may be a telephone operator position system (TOPS) switch of a public switched network (PSN). The proactive call services system includes a network interface, voice interface, call processing platform (CPP), link platform and monitors integrated with the PSN. The system gathers information as the TOPS switch processes a call, and with this information offers additional proactive call services to the caller.

System for providing proactive call services utilizing remote monitors

A multi-node telephone network having at least caller-controlled interfaces for providing automatic voice messaging. A first caller-controlled interface unit is preferably located in a trunk or line between the calling station and a first switch for providing intercept and redirect functions associated with automatic voice messaging. The first switch is connected to a second switch via one or more digital communication links. A second caller-controlled interface unit is located in one of the digital communication links for providing intercept and redirect functions associated with automatic voice messaging. According to the invention, each of the interface units includes arbitration control circuits responsive to predetermined signaling to determine which of the interface units will provide the intercept and redirect functions upon call initiation to the called station by a caller at the calling station. The predetermined signaling is preferably provided in a common channel signaling No. 7 (SS7) protocol.

Automatic voice/data messaging enhancements

The present invention describes an apparatus for use in a telephone network having a calling station connectable to a first switch means and a called station connectable to a second switch means, with the first and second switch means being connectable by a link. Generally, the apparatus comprises an interface having a passive in-line monitor connected in the link for detecting entry of a predetermined service access code by a user of the calling station or a user of the called station after call completion between the calling station and the called station and before either of said users goes on-hook. Upon entry of the predetermined service access code, a speech circuit of the apparatus issues a predetermined prompt to the user of the calling station and/or the user of the called station. Processor control circuitry of the apparatus is then responsive to entry of predetermined signaling by one of the users following the issuance of the prompt for providing a predetermined service controlled and paid for by the user requesting the predetermined service. Alternatively, if the parties are familiar with the service offering, the prompt is not required.

Method and apparatus for providing proactive call services following call completion

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